Cesium and Cesium-Lithium Selenates

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Title:Cesium and Cesium-Lithium Selenates
Creators:
Havlíček, David
Mička, Zdeněk
Barbořák, Václav
Šmejkal, Petr
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 65, 2, pp. 167-178
Uncontrolled Keywords:Cesium, Thermoanalytical properties, Infrared spectra, X-Ray diffraction, Selenates, Solubility diagrams

Abstract

The Cs<sub>2</sub>SeO<sub>4</sub>-H<sub>2</sub>SeO<sub>4</sub>-H<sub>2</sub>O and Cs<sub>2</sub>SeO<sub>4</sub>-Li<sub>2</sub>SeO<sub>4</sub>-H<sub>2</sub>O systems were studied at 30 °C as a basis for determining the conditions for formation of the compound Cs<sub>4</sub>LiH<sub>3</sub>(SeO<sub>4</sub>)<sub>4</sub>, which has been observed to undergo a ferroelectric phase transition. The results of a solubility study were used to construct a pseudo-ternary cross-section for CsLiSeO<sub>4</sub>-CsHSeO<sub>4</sub>-H<sub>2</sub>O in the quaternary system Cs<sub>2</sub>SeO<sub>4</sub>-Li<sub>2</sub>SeO<sub>4</sub>-H<sub>2</sub>SeO<sub>4</sub>-H<sub>2</sub>O, which demonstrated that, in the region of crystallization of the compound of interest, a substance with the composition Cs<sub>4</sub>LiH<sub>3</sub>(SeO<sub>4</sub>)<sub>4</sub> is actually formed. Attention was further paid to the following newly prepared compounds: cesium-lithium selenate hemihydrate, CsLiSeO<sub>4</sub>·1/2&nbsp;H<sub>2</sub>O, tricesium-lithium bis(selenate) hemihydrate, Cs<sub>3</sub>Li(SeO<sub>4</sub>)<sub>2</sub>·1/2 H<sub>2</sub>O and hydrogen tricesium bis(selenate) hemihydrate, Cs<sub>3</sub>H(SeO<sub>4</sub>)<sub>2</sub>·1/2 H<sub>2</sub>O, which were characterized by X-ray, spectral and thermoanalytical data. <p>

Title:Cesium and Cesium-Lithium Selenates
Creators:
Havlíček, David
Mička, Zdeněk
Barbořák, Václav
Šmejkal, Petr
Uncontrolled Keywords:Cesium, Thermoanalytical properties, Infrared spectra, X-Ray diffraction, Selenates, Solubility diagrams
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:65
Number:2
Page Range:pp. 167-178
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20000167UNSPECIFIED
ID Code:1633
Item Type:Article
Deposited On:06 Feb 2009 17:11
Last Modified:06 Feb 2009 16:11

Citation

Havlíček, David; Mička, Zdeněk; Barbořák, Václav; Šmejkal, Petr (2000) Cesium and Cesium-Lithium Selenates. Collection of Czechoslovak Chemical Communications, 65 (2). pp. 167-178. ISSN 0010-0765

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